Why would often tooth bleeding?

Why would often tooth bleeding?

Question:

Every time a tooth blood is up. What is this? How to check has treatment? It has been a long time 23 years.

Treatment:

Check whether the first suggestion has thrombocytopenia and note if fruits and vegetables could eat little lack of vitamin c may also must pay attention to whether have. Lack of vitamin k abnormal liver can also lead to the phenomenon of teeth. Must pay attention to whether the cause periodontitis and etc.